Automatic stop mechanism for railway-trains.



`N0 '191. 3-S8-- l A PAT-mm muso, 19.05. v

A v G; B...qELAKosKI. i AUTOMATIC STOP MBGHANISM FOR RAILWAY-TRAINS.

PATBNTED. MAY 30, i905.

No. 791,338.= A

. j G. Is. GBLAKo-SIII. AUTOMATIC sToP MBcIIA-IIISM TOR RAILWAY TRAINS.

i lAPEL'IOATION FILED DE(1.2*1, 1904.

3 SHEETS-SHEET ZI :110.791.338. n PAIBNTBD MAYso, 19.05.

A G. B. GELA'KosKI. AUTOMATIC STOP MBCIIANISM IOR RAILWAY TRAINS.

APPLIoATIoN-IILBI) 12110.21, 1904. v l

' BSIIEETs-SHBET a.

if' the setting: of the brakes automatically will be insured should the engineer neglect toettend to the matter himself at thepropertirne.` When used in connection with an electric can' j UNITED STATES Patented May 30, 1905.

VPIWNT OFFICE.

enonen III-invariant GIiLAKosKI, OFFRUITPQRT, MICHIGAN.

i AuToMA'nosi-OP nrllioi-nmlswilFoav RAILWAY-rmINS.v

` I SPECIFICATION forming part of Letters Patent No. 791,338, dated May 30, 1905.

' i l Appleman inea December 21, lsoifsraino. 237,816.

To all/,whom bimby cmwernf Be it known that I, GEORGE BERNHARDT (irEIiAKO'sKI, acitizen of-the United States, residing at Fruitport, in the county of Muskegon, State of Michigan, have invented certain new and useful Improvements inAutoinatic Stop Mechanisms for Railway-Trains; and Ido hereby declare the following` to be afull, clear, and exact description of the invention, such as will'enable others skilled in the art to which it appertains to makeand use the same.

i This invention relates to automatic stopping vmechanisms for railways `wherein .properly setting an instrument in the eab ot' a locomotive the closing of the throttle and connection'. is made with the circuit-breaker in place of the throttle oi' the locomotive.

apparatus.

f Other objects and advantages of the invention willbe understood'i'rom the following description. f. v

In the drawings form-ing a portion of this -specilicatiom and in which like numerals of reference indicate similar parts in the several views, Figurey 1 is a view showing va portion of the cab of a locomotive in section and illustrating, on an exaggerated scale, the present Fig. 2 is a side elevation showing a-portion of the rooll 4cf a eab with the angular rock-lever thereof, the position of oneuof the striker-farms thereagainst being illustrated. Fig. 3 is av top plan view oi' the 'weight-releasing mechanism. Fig 4 is a side 'elevation of the weight-releasing mechanism.

' Fig. 5y is adetail sectional view oi' the weightbox, the supporting-pin, and connecting-lever, together with the weight and its chain. Fig. 6 is a detail view of the releasing-arm carried by the releasing-wheel.

Referring now t the-drawings, in which l the Invention 1s Illustrated in connection with the cab oi a locomotive, there is illustrated at' 10am ordinary air-brake handle, and at 11 the throttle of the engine, and attached to the i handle and throttle, respectively, are chains 12 and 13, which are passed over direction-pulleys 14 and 15 and then connected to a chain 16, which after passingv over a direction-pulley 17 enters a box 18, wherev it is connected to a vertically-slidable weight 19, which when passing from the upper to the lower limit oi' its movement draws the chain 16 and swings the air-brake-reducin'g-valve handle 10 and the handle of the throttle 11 to set the brake'l arm, hereinafter described, to draw the pin 2O from its supporting position.

The box 18 is secured upon abase 2.2, lupon which is secured a socket 23, having a post 24 mounted therein and from which projects an arm 25, that carries the direction-pulley A17. Rotatably mounted upon the upper end of the post 24 is a ratchet-wheel 26, havinga crown-gear 27 on its upper face. Mounted rotatably upon the post 24 above and resting on the hub of the wheel 26 is a collar 28, having a radiating arm 29, at the outer end of which is hinged an arm 30 for vertical movement. At.' the outer end of the arm 30 is a .weight 31, provided with a handle 32, and by grasping said handle the weight may be lifted 'and the arm 30 swung upwardly upon its hinge 88 -and the arm then rotated with the collar 28 to bring the arm 30 above any one of the notches of tlie crown-gear 27 to vary the angular distance necessary for the arm to travel into engagement `with the lever 21. The weight 31 holds the arm 30 down. The arm 30 is at such an elevation when engaged with the crown-gear that when rotated with the gear it will strike the releasing-lever 21 and move it to withdraw the pin 2O from beneath the/weight .19, with the result hereinbefore set forth. 1

The' present apparatus is used in connection with a single-track railway having turnoutsto permit of passing of trains, and there are as many notches in the crown-gear 27 or annular rack as there are turnouts. In advance of each turnout there is arranged a strikeraiin, and carried bythe cab of the locomotive is areek-lever adapted to be struck and rocked by the striker-arms in succession, there being mechanism between the rocker-lever and the ratchet-wheel for rotating the latter one step each time the rock-lever is operated.

A railway is indicated at 40, having turnouts 41, and iii advance ot' each turnout is a post 42, on which is slidably mounted a casting 43, which is adapted to be held at different elevations on the post by a pin 44, passed through the casting and through one ot' a vertical series of perforations 45 l in the post. The pin serves also to prevent rotation of the casting on the post. From the casting 43 projects a str ikerarm 46, having a soft facing 47 at its outer endn On the roof 49 of the cab is mounted an angular rock-lever 50, having a pad 51 upon one end, and as the engine moves along the track the pad is brought into contact with the pads 47 of .the arms 46 successively and the lever 50 is rocked. To return the lever to its normal position when released by a striker-arm, a spring 52' is connected to the angular lever and the roof ofthe car. Through the roof of the car is passed a thimble 53, through which is passed a chain 54, attached at its upper end to the angular lever. lVithin the cab the chain 54 passes downwardly and around a directionpulley 55, carried by an arm 56 of a post 57, mounted in a socket 58 on the base 22.A In the upper end of the post 57 above the point of attachment oi the arm 56, there is journaled a rock-shaft 58', having at one end a crankarm 59, to which the chain 54 is attached, so

that when the rocklever 50 is actuated, the

shaft 58 is rocked in oncdirection, return movement of the shaft being insured by a' spring 60, attached to the crank-arm 6l at the opposite end of the shaft and to the 'post 62, this post being connected by a brace 68 with the post 24 to add rigidity thereto. The crankarm 6l projects above the shaft 58 and has pivoted thereto a pawl 64, which engages the ratchet-teeth ot' the wbeelQG, the pawl being held yieldably in such engagement by a spring 65. attached thereto and to a bracket 66, carried by the crank-arm. The movement of the shaft 58' when rocked by the angular rock-lever is suilicient to advance the ratchet-wheel one notch or tooth, and it will be noted that there is one notch in the crown-gear or annular rack for each tooth of the ratchet-wheel.

In the use of the apparatus it' the engineer ieeeives'an order to pass a train at a certain turnout and there are live intervening turnouts to be first passed he will of course pass six striker-arnis before reaching the turnout. He therefore shi'lts the releasing-arm 3() rotatably and engages it in the sixth notch from the lever 21, so that when the striker-wheel has advanced six steps by actuation of the rock-lever six times by the six striker-arms the releasing-arm at the sixth step of the releasing-wheel will engage and shift the lever 21 to withdraw the supporting-pin 2O and rclease the weight for the purpose liereinbefore described.

That is claimed is-- l. The combination with a throttle and the reducing-valve of an air-brake, of a weight movable vertically, connections between the weight and the throttle and reducing-valve for throwing the latter when the weight descends, a support for the weight` a releasing-lever connected with the support, a rotatable rcleasing-arm disposed to engage and actuate the lever, said arm being adjustable to dilierent angular distances from the lever, astriker mechanism and means connected with the striker mechanism and operable thereby for rotating the releasing-arm step by step.

2. The combination with a throttle and reducing-valve, of an air-brake,l of a potential device connected therewith jfor shifting them, a releasing-lever for the potential device, a ro.- tatable releasing-arm adapted to engage and actuate the lever', said arm being adjustable t0 di'erent angular distances from the lever,A a striker mechanism and means connected withl the striker mechanism and operable thereby for rotating the releasing-arm step by'step. v

3. The combination with a potential device having means for connection with a member to be shifted, of means for holding the potential device normally inactive, a leverconiiected with said means for retractng it, a ratclietwheel, an annular rack carried by the ratchetwheel, a releasing-arm pvoted coiicentrieally with the ratchet-wheel and movable into and out of engagement with the rack rotatably thereof, said arm in all positions oi'ciigagement with the rack being adapted toeugage and actuate the releasing-lever, a rock-shalt, a pawl carried by the i'oek-shaltin active relation to the ratchet-wheel to rotate the latterr when the shat't is rocked, a striker mechanism,

and connections between the striker mechanism and the rock-shaft'tor actuating the latter. In .testimony whereof I allix my signature in presence otl two witnesses.

GEORGE BllliNllMHl'l (lllliAKUSlil. lVitiiesses:

OLIVE Fourmi., SIL/is ll. lluunmx.

IIO 

